| Challenger Cary | 07/19 21:00 | 25 | Roberto Quiroz v Govind Nanda | 2-6,3-6 | |
| ATP Newport | 07/11 15:00 | 14 | [171] Sebastian Ofner v Roberto Quiroz [278] | 4-6,6-3,6-1 | |
| ITF - Weston M15 | 07/02 20:50 | 26 | Christian Langmo v Roberto Quiroz | 6-3,3-6,12-10 | |
| ITF - Weston M15 | 07/01 13:00 | 25 | Tyler Zink v Roberto Quiroz | 2-6,0-6 | |
| Challenger Orlando | 06/08 14:00 | 25 | [280] Roberto Quiroz v Jason Kubler [267] | 6-7,4-6 | |
| Challenger Little Rock | 06/03 00:15 | 25 | [248] Jack Sock v Roberto Quiroz [280] | 6-3,6-1 | |
| Challenger Oeiras | 05/25 11:40 | 25 | [275] Nuno Borges v Roberto Quiroz [276] | 6-3,6-0 | |
| Challenger Oeiras | 05/16 14:00 | 14 | [276] Roberto Quiroz v Hugo Grenier [265] | 6-7,6-7 | |
| Challenger Salinas 2 | 04/28 15:00 | 25 | [320] JC Aragone v Roberto Quiroz [279] | 6-2,6-7,6-2 | |
| Challenger Salinas | 04/19 16:00 | 25 | [274] Roberto Quiroz v Camilo Ugo Carabelli [335] | 6-4,1-6,6-7 | |
| Challenger Orlando | 04/13 17:50 | 25 | [431] Aleksandar Kovacevic v Roberto Quiroz [273] | 6-1,5-7,6-4 | |
| Challenger Orlando | 04/12 20:00 | 19 | [273] Roberto Quiroz v Kevin King [315] | 6-7,6-2,6-1 | |
| Challenger Orlando | 04/12 14:00 | 14 | Roberto Quiroz v Roy Smith | 6-4,2-6,6-2 | |
| ATP Miami | 03/22 22:30 | 14 | [271] Roberto Quiroz v Thomas Fabbiano [178] | 4-6,6-7 | |
| Challenger Cleveland | 03/15 19:05 | 25 | Liam Draxl v Roberto Quiroz | 7-6,6-4 | |
| Challenger St. Petersburg | 03/09 07:00 | 25 | [303] Roberto Ortega-Olmedo v Roberto Quiroz [266] | 6-3,6-3 | |
| Challenger St. Petersburg | 03/04 08:00 | 26 | [266] Roberto Quiroz v Vit Kopriva [305] | 2-6,4-6 | |
| Challenger St. Petersburg | 03/02 08:55 | 25 | [266] Roberto Quiroz v Duckhee Lee [288] | 6-2,6-2 | |
| Challenger Nur-Sultan | 02/23 14:00 | 25 | [262] Roberto Quiroz v Henri Laaksonen [134] | 4-6,2-6 | |
| Challenger Nur-Sultan | 02/22 06:10 | 19 | [262] Roberto Quiroz v Bogdan Bobrov [434] | 4-6,7-5,4-6 | |
| Challenger Nur-Sultan | 02/21 08:30 | 14 | Roberto Quiroz v Aleksandre Metreveli | 6-3,6-3 | |
| Challenger Potchefstroom | 02/15 12:25 | 25 | [253] Roberto Quiroz v Tristan Lamasine [246] | 5-7,5-7 | |
| Challenger Potchefstroom | 02/10 08:00 | 26 | [253] Roberto Quiroz v Benjamin Bonzi [137] | 6-3,4-6,3-6 | |
| Challenger Potchefstroom | 02/08 11:30 | 25 | Robbie Arends v Roberto Quiroz | 2-6,2-6 | |
| ATP Delray Beach | 01/11 19:30 | 27 | [35] Hubert Hurkacz v Roberto Quiroz [293] | 6-4,6-4 | |
| ATP Delray Beach | 01/10 23:00 | 26 | [293] Roberto Quiroz v Ivo Karlovic [148] | 6-2,6-4 | |
| ATP Delray Beach | 01/08 17:45 | 25 | [251] Noah Rubin v Roberto Quiroz [293] | 6-7,3-6 | |
| ATP Delray Beach | 01/06 16:00 | 19 | [284] Viktor Galovic v Roberto Quiroz [293] | 3-6,5-7 | |
| ATP Delray Beach | 01/05 16:40 | 164 | [435] Gonzalo Escobar v Roberto Quiroz [293] | 4-6,7-6,5-7 | |
| Challenger Campinas | 11/30 16:25 | 25 | [160] Emilio Gomez v Roberto Quiroz [295] | 6-3,7-6 |
Wikipedia - Roberto Quiroz
Roberto Quiroz (ur. 23 lutego 1992 w Guayaquil) – ekwadorski tenisista, reprezentant kraju w Pucharze Davisa.